What we know about the start of the Palisades Fire [Video]

As officials probe the cause of the Palisades Fire in Southern California, investigators have focused their attention on a popular Los Angeles-area hiking trail where another fire had burned six days earlier. 

A CBS News analysis of satellite imagery and photos shared by local residents indicates the Palisades Fire likely started close to where that other blaze, the Lachman Fire, broke out on Jan. 1. 

While the Lachman Fire was limited to eight acres and did not destroy structures, the Palisades Fire, which broke out on the morning of Jan. 7, exploded as Santa Ana winds picked up, burning more than 23,000 acres and killing at least eight people, according to Cal Fire. One week in, the fire was still only 17% contained. 

Officials have not determined a cause for the Palisades Fire. The Bureau of Alcohol, Tobacco, Firearms and Explosives …